Convergence-evoked nystagmus.
We describe 17 patients with acquired convergence-evoked nystagmus (CEN). Vertical CEN was most common (82%), with upbeat much more frequent than downbeat. The most common diagnoses were multiple sclerosis (41%) and brainstem infarction (29%). CEN is an easily elicited bedside sign of posterior fossa dysfunction and can be a clinically useful manifestation. In cases of isolated optic neuritis, the presence of CEN may indicate dissemination of neurologic disease.
Oliva
A
A
Neurology Service, Walter Reed Army Medical Center, Washington, DC.
Rosenberg
M L
ML
D000328:Adult; D000368:Aged; D003290:Convergence, Ocular; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000503:physiopathology*; D012189:Retrospective Studies